.btn-primary{
    margin-left: 50px;
    margin-right: 10px;
}
header{
    margin-top: 34px;
}
.navbar-brand{
    margin-right: 2rem;
}
nav a{
    font-size: 14px;
}
.bg-light{
    border-bottom: 1px solid #e7e7e7;
}
.col-md-6{
    height: 212px;
}
.row{
    text-align: center;
}
.banner .row a{
    font-size: 30px;
    text-decoration: none;
}
.carousel-indicators li{
    background-color: gainsboro;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}
header{
    border-bottom: 1px solid #ccc;
    background-image: url("../images/1020px.png");
}
.banner-top .ll{
    position: relative;
    margin-top:100px;
}
.banner-top img{
    width: 100%;
    height: 100%;
}
.banner-top{
    border-bottom: 1px solid #e3e3e3;
    height: 402px;
}
.banner-top .zi{
    float: right;
    text-align:right;
    position: absolute;
    top: 15px;
    right: 0;
}
.banner-bottom{
    border-bottom: 1px solid #e3e3e3;
    background-color: #f5f5f5;
}
.banner-bottom h4{
    text-align: center;
    padding-top: 40px;
}
.banner-bottom h5{
    margin-top: 8px;
}
.banner-bottom .col-md-3{
    margin-top: 45px;
}
main{
    margin-top: 40px;
}
main h3{
    color: #00adee;
}
.card-header{
    background: -webkit-linear-gradient(left,#03a3dd,#00d0ef);
    color: #ffffff;
}
.card-body{
    padding: 30px;
    background-color: #fff;
}
.card-text{
    height: 245px;
    margin-top: 20px;
    margin-bottom: 20px;
    overflow: hidden;
    font-size: 20px;
    color: #333333;
}
main h2{
    text-align: center;
}
.main-bottom .col-md-4{
    text-align: left;
}
.main-bottom .row h6{
    color: #00adee;
}
.main-bottom .row p{
    font-size: 14px;
}
.main-bottom .btn{
    margin-left: 0;
    margin-top: 50px;
    margin-bottom: 25px;
}
.main-bottom a{
    padding: 13px 28px;
    color: white;
    background-color: #337ab7;
    border-radius: 10px;
    line-height: 164px;
}
.main-bottom a:hover{
    text-decoration: none;
}
footer ul{
    padding-left: 0;
}
footer .row p{
    margin-bottom: 0;
}

/*响应时代吗*/
@media (max-width: 600px) {
    .btn-primary{
        margin-left: 0;
    }
    .banner .col-md-6{
        height: 288px;
    }
    header .datu{
        width: 100%;
    }
    .banner-top .ll .zi{
        float: left;
        text-align: left;
        top:148px;
    }
    .banner-bottom .col-md-3{
        text-align: center;
    }
    .card-text{
        height: auto;
    }
}
